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Note 16 - Quarterly Results (Unaudited) | 12 Months Ended
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Mar. 31, 2018
Notes to Financial Statements |
Quarterly Financial Information [Text Block] | Note 1 6 . Quarterly Results (unaudited) Quarterly financial information for the years ended March 31, 2017, 2016 and 2015 is summarized as follows (net income per share per quarter will not add up to reported annual earnings per share due to differences in average outstanding shares as reported on a quarterly basis) (in thousands, except per share data):
|  | First |  |  | Second |  |  | Third |  |  | Fourth |
201 8 |  | Quarter |  |  | Quarter |  |  | Quarter |  |  | Quarter |
Revenues |  | $ | 22,673 |  |  | $ | 22,954 |  |  | $ | 23,671 |  |  | $ | 26,881 |
Gross profit |  |  | 12,671 |  |  |  | 13,233 |  |  |  | 12,681 |  |  |  | 16,034 |
Net income (loss) |  |  | 1,517 |  |  |  | 2,353 |  |  |  | (11,086 | ) |  |  | 4,254 |
Net income (loss) per share – basic |  | $ | 0.41 |  |  | $ | 0.63 |  |  | $ | (2.93 | ) |  | $ | 1.12 |
Net income (loss) per share – diluted |  |  | 0.39 |  |  |  | 0.60 |  |  |  | (2.93 | ) |  |  | 1.08 |
|  | First |  |  | Second |  |  | Third |  |  | Fourth |
201 7 |  | Quarter |  |  | Quarter |  |  | Quarter |  |  | Quarter |
Revenues |  | $ | 21,114 |  |  | $ | 24,409 |  |  | $ | 23,843 |  |  | $ | 24,299 |
Gross profit |  |  | 12,014 |  |  |  | 13,724 |  |  |  | 13,537 |  |  |  | 13,964 |
Net income |  |  | 1,930 |  |  |  | 2,358 |  |  |  | 3,252 |  |  |  | 3,643 |
Net income per share – basic |  | $ | 0.53 |  |  | $ | 0.64 |  |  | $ | 0.88 |  |  | $ | 0.98 |
Net income per share – diluted |  |  | 0.51 |  |  |  | 0.62 |  |  |  | 0.84 |  |  |  | 0.94 |
|  | First |  |  | Second |  |  | Third |  |  | Fourth |
201 6 |  | Quarter |  |  | Quarter |  |  | Quarter |  |  | Quarter |
Revenues |  | $ | 18,158 |  |  | $ | 21,776 |  |  | $ | 19,913 |  |  | $ | 24,812 |
Gross profit |  |  | 11,141 |  |  |  | 13,067 |  |  |  | 12,209 |  |  |  | 14,996 |
Net income |  |  | 2,755 |  |  |  | 1,826 |  |  |  | 2,597 |  |  |  | 3,991 |
Net income per share – basic |  | $ | 0.77 |  |  | $ | 0.51 |  |  | $ | 0.72 |  |  | $ | 1.10 |
Net income per share – diluted |  |  | 0.74 |  |  |  | 0.48 |  |  |  | 0.69 |  |  |  | 1.06 |

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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