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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Mar. 31, 2012
Income Statement [Abstract] |  |  |
Net sales | $ 102,218 | $ 104,973 | $ 103,186
Cost of products sold | 70,406 | 73,151 | 70,431
Cost of goods sold - amortization |  |  | 120
Total cost of goods sold | 70,406 | 73,151 | 70,551
Gross profit | 31,812 | 31,822 | 32,635
Other expenses and income: |  |  |
Selling, general and administrative | 16,973 | 16,332 | 15,321
Selling, general and administrative - amortization | 222 | 228 | 219
Interest income | (94) | (51) | (58)
Interest expense | 1 | (264) | 476
Total other expenses and income | 17,102 | 16,245 | 15,958
Income before provision for income taxes | 14,710 | 15,577 | 16,677
Provision for income taxes | 4,565 | 4,429 | 6,124
Net income | $ 10,145 | $ 11,148 | $ 10,553
Basic: |  |  |
Net income | $ 1.01 | $ 1.11 | $ 1.06
Diluted: |  |  |
Net income | $ 1.00 | $ 1.11 | $ 1.06
Average common shares outstanding: |  |  |
Basic | 10,070 | 10,027 | 9,963
Diluted | 10,104 | 10,051 | 9,998
Dividends declared per share | $ 0.13 | $ 0.09 | $ 0.08

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