Note 5 - Employee Benefit Plans (Tables)
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12 Months Ended |
Dec. 31, 2015 |
Notes Tables |
Ìý
|
Schedule of Net Funded Status [Table Text Block] |
Ìý | Ìý |
| Ìý | Ìý |
| Ìý | Change in projected benefits obligation:
| Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Projected benefit obligation at beginning of year
| Ìý | $ | 5,093,080 | Ìý | Ìý | $ | 3,887,518 | Ìý |
| Ìý | Ìý | 160,133 | Ìý | Ìý | Ìý | 100,480 | Ìý |
| Ìý | Ìý | 199,538 | Ìý | Ìý | Ìý | 189,163 | Ìý |
| Ìý | Ìý | (355,346 | ) | Ìý | Ìý | 1,134,525 | Ìý |
| Ìý | Ìý | (213,105 | ) | Ìý | Ìý | (218,606 | ) | Projected benefit obligation at end of year
| Ìý | $ | 4,884,300 | Ìý | Ìý | $ | 5,093,080 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Fair value of plan assets at beginning of year
| Ìý | $ | 4,338,820 | Ìý | Ìý | $ | 4,082,642 | Ìý | Actual return on plan assets
| Ìý | Ìý | (46,609 | ) | Ìý | Ìý | 224,784 | Ìý | Contributions by employer
| Ìý | Ìý | 471,955 | Ìý | Ìý | Ìý | 250,000 | Ìý |
| Ìý | Ìý | (213,105 | ) | Ìý | Ìý | (218,606 | ) | Fair value of plan assets at end of year
| Ìý | $ | 4,551,061 | Ìý | Ìý | $ | 4,338,820 | Ìý | Funded (unfunded) status at end of year
| Ìý | $ | (333,239 | ) | Ìý | $ | (754,260 | ) |
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Schedule of Defined Benefit Plans Disclosures [Table Text Block] |
Ìý | Ìý |
| Ìý | Ìý |
| Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Ìý | $ | — | Ìý | Ìý | $ | — | Ìý |
| Ìý | Ìý | (333,239 | ) | Ìý | Ìý | (754,260 | ) | Ìý | Ìý | $ | (333,239 | ) | Ìý | $ | (754,260 | ) |
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Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] |
Ìý | Ìý |
| Ìý | Ìý |
| Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Ìý | $ | (1,930,079 | ) | Ìý | $ | (2,086,396 | ) |
| Ìý | Ìý | — | Ìý | Ìý | Ìý | (3,511 | ) | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Amounts recognized in accumulated other comprehensiveÌý income (loss), before taxes
| Ìý | Ìý | (1,930,079 | ) | Ìý | Ìý | (2,089,907 | ) |
| Ìý | Ìý | 681,173 | Ìý | Ìý | Ìý | 737,113 | Ìý | Amounts recognized in accumulated other comprehensiveÌý income (loss), after taxes
| Ìý | $ | (1,248,906 | ) | Ìý | $ | (1,352,794 | ) |
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Schedule of Net Benefit Costs [Table Text Block] |
Ìý | Ìý |
| Ìý | Ìý |
| Ìý | Ìý |
| Ìý | Components of net periodic benefit cost:
| Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Ìý | $ | 160,133 | Ìý | Ìý | $ | 100,480 | Ìý | Ìý | $ | 104,920 | Ìý |
| Ìý | Ìý | 199,538 | Ìý | Ìý | Ìý | 189,163 | Ìý | Ìý | Ìý | 166,865 | Ìý | Expected return on plan assets
| Ìý | Ìý | (296,446 | ) | Ìý | Ìý | (278,521 | ) | Ìý | Ìý | (234,523 | ) |
| Ìý | Ìý | 144,026 | Ìý | Ìý | Ìý | 46,171 | Ìý | Ìý | Ìý | 104,854 | Ìý | Amortization of prior service cost
| Ìý | Ìý | 3,511 | Ìý | Ìý | Ìý | 5,570 | Ìý | Ìý | Ìý | 6,840 | Ìý | Net periodic benefit cost
| Ìý | $ | 210,762 | Ìý | Ìý | $ | 62,863 | Ìý | Ìý | $ | 148,956 | Ìý |
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Schedule of Changes in Projected Benefit Obligations [Table Text Block] |
Ìý | Ìý |
| Ìý | Ìý |
| Ìý | Ìý |
| Ìý | Net actuarial (gain) loss
| Ìý | $ | (12,291 | ) | Ìý | $ | 1,188,262 | Ìý | Ìý | $ | (404,563 | ) | Recognized actuarial loss
| Ìý | Ìý | (144,026 | ) | Ìý | Ìý | (46,171 | ) | Ìý | Ìý | (104,854 | ) | Recognized prior service cost
| Ìý | Ìý | (3,511 | ) | Ìý | Ìý | (5,570 | ) | Ìý | Ìý | (6,840 | ) | Total recognized in other comprehensive income, before taxes
| Ìý | $ | (159,828 | ) | Ìý | $ | 1,136,521 | Ìý | Ìý | $ | (516,257 | ) | Total recognized in net benefit cost and other comprehensive income, before taxes
| Ìý | $ | 50,934 | Ìý | Ìý | $ | 1,199,384 | Ìý | Ìý | $ | (367,301 | ) |
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Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block] |
Ìý | Ìý |
| Ìý | Ìý |
| Ìý | Projected benefit obligation in excess of Plan assets:
| Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Projected benefit obligation
| Ìý | $ | 4,884,300 | Ìý | Ìý | $ | 5,093,080 | Ìý | Fair value of plan assets
| Ìý | $ | 4,551,061 | Ìý | Ìý | $ | 4,338,820 | Ìý | Plan assets in excess of accumulated benefit obligation:
| Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Accumulated benefit obligation
| Ìý | $ | 4,059,334 | Ìý | Ìý | $ | 4,157,653 | Ìý | Fair value of plan assets
| Ìý | $ | 4,551,061 | Ìý | Ìý | $ | 4,338,820 | Ìý |
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Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] |
Ìý | Ìý | Ìý |
| Ìý | Ìý |
| Ìý | Ìý |
| Ìý | Weighted average assumptions used toÌý determine benefit obligations as of December 31:
| Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Ìý | Ìý | 4.50% | Ìý | Ìý | Ìý | 4.00% | Ìý | Ìý | Ìý | 5.00% | Ìý | Rate of compensation increase
| Ìý | Ìý | 7.29 | Ìý | Ìý | Ìý | 7.29 | Ìý | Ìý | Ìý | 7.29 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Weighted average assumptions used to determine benefit costs for the years ended December 31:
| Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Ìý | Ìý | 4.00% | Ìý | Ìý | Ìý | 5.00% | Ìý | Ìý | Ìý | 4.25% | Ìý | Expected return on plan assets
| Ìý | Ìý | 7.00 | Ìý | Ìý | Ìý | 7.00 | Ìý | Ìý | Ìý | 7.00 | Ìý | Rate of compensation increase
| Ìý | Ìý | 7.29 | Ìý | Ìý | Ìý | 7.29 | Ìý | Ìý | Ìý | 7.29 | Ìý |
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Fair Value, Assets Measured on Recurring Basis [Table Text Block] |
Ìý | Ìý |
| Ìý | Ìý | Identical Assets (Level 1)
| Ìý | Ìý |
| Ìý | Ìý |
| Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Cash and Cash Equivalents
| Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Ìý | $ | 827,692 | Ìý | Ìý | $ | 827,692 | Ìý | Ìý | $ | — | Ìý | Ìý | $ | — | Ìý |
| Ìý | Ìý | 196,380 | Ìý | Ìý | Ìý | 196,380 | Ìý | Ìý | Ìý | — | Ìý | Ìý | Ìý | — | Ìý |
| Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Ìý | Ìý | 1,730,404 | Ìý | Ìý | Ìý | 1,730,404 | Ìý | Ìý | Ìý | — | Ìý | Ìý | Ìý | — | Ìý |
| Ìý | Ìý | 1,796,585 | Ìý | Ìý | Ìý | 1,796,585 | Ìý | Ìý | Ìý | — | Ìý | Ìý | Ìý | — | Ìý |
| Ìý | $ | 4,551,061 | Ìý | Ìý | $ | 4,551,061 | Ìý | Ìý | $ | — | Ìý | Ìý | $ | — | Ìý |
Ìý | Ìý |
| Ìý | Ìý |
| Ìý | Ìý |
| Ìý | Ìý |
| Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Cash and Cash Equivalents
| Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Ìý | $ | 430,755 | Ìý | Ìý | $ | 430,755 | Ìý | Ìý | $ | — | Ìý | Ìý | $ | — | Ìý |
| Ìý | Ìý | 177,000 | Ìý | Ìý | Ìý | 177,000 | Ìý | Ìý | Ìý | — | Ìý | Ìý | Ìý | — | Ìý | Mutual Funds | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Ìý | Ìý | 1,817,935 | Ìý | Ìý | Ìý | 1,817,935 | Ìý | Ìý | Ìý | — | Ìý | Ìý | Ìý | — | Ìý |
| Ìý | Ìý | 1,913,130 | Ìý | Ìý | Ìý | 1,913,130 | Ìý | Ìý | Ìý | — | Ìý | Ìý | Ìý | — | Ìý |
| Ìý | $ | 4,338,820 | Ìý | Ìý | $ | 4,338,820 | Ìý | Ìý | $ | — | Ìý | Ìý | $ | — | Ìý |
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Schedule of Expected Benefit Payments [Table Text Block] |
| Ìý |
| Ìý | Ìý | 2016 | Ìý | Ìý | Ìý | $ | 215,184 | Ìý | Ìý | 2017 | Ìý | Ìý | Ìý | Ìý | 212,812 | Ìý | Ìý | 2018 | Ìý | Ìý | Ìý | Ìý | 243,354 | Ìý | Ìý | 2019 | Ìý | Ìý | Ìý | Ìý | 267,752 | Ìý | Ìý
| 2020 | Ìý | Ìý | Ìý | Ìý | 282,652 | Ìý | Ìý | 2021 | to | 2025 | Ìý | Ìý | 1,342,944 | Ìý |
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