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Accounting and Repoting Changes - Impact of Adoption on Consolidated Statement of Income and Balance Sheet (Detail) - USD ($) $ in Thousands | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Apr. 01, 2018 | Mar. 31, 2018 | Mar. 31, 2017
Consolidated Statement of Income |  |  |  |  |
Net sales | $ 29,551 | $ 20,851 |  |  |
Cost of products sold | 22,409 | 16,073 |  |  |
Gross profit | 7,142 | 4,778 |  |  |
Selling, general and administrative | 4,551 | 3,654 |  |  |
Income before provision for income taxes | 3,025 | 1,333 |  |  |
Provision for income taxes | 702 | 398 |  |  |
Net income | 2,323 | 935 |  |  |
Assets |  |  |  |  |
Trade accounts receivable, net of allowances | 12,698 |  |  | $ 17,026 |
Unbilled revenue | 11,844 |  | $ 6,092 | 8,079 |
Inventories | 19,323 |  |  | 11,566 |
Prepaid expenses and other current assets | 1,342 |  |  | 772 |
Other assets | 221 |  |  | 202 |
Liabilities and stockholders’ equity |  |  |  |  |
Accounts payable | 8,296 |  |  | 16,151 |
Accrued compensation | 5,001 |  |  | 4,958 |
Accrued expenses and other current liabilities | 3,469 |  |  | 2,885 |
Customer deposits | 25,867 |  | 26,585 | 13,213 |
Deferred income tax liability | 1,417 |  |  | 1,427 |
Stockholders’ equity: |  |  |  |  |
Retained earnings | 99,427 | $ 110,600 |  | 99,011 | $ 110,544
Accumulated other comprehensive loss | (8,279) |  |  | $ (8,250) |
ASU 2014-09 [Member] |  |  |  |  |
Assets |  |  |  |  |
Trade accounts receivable, net of allowances |  |  | 17,564 |  |
Unbilled revenue |  |  | 6,092 |  |
Inventories |  |  | 24,551 |  |
Prepaid expenses and other current assets |  |  | 890 |  |
Other assets |  |  | 271 |  |
Liabilities and stockholders’ equity |  |  |  |  |
Accounts payable |  |  | 15,445 |  |
Accrued compensation |  |  | 4,786 |  |
Accrued expenses and other current liabilities |  |  | 3,369 |  |
Customer deposits |  |  | 26,585 |  |
Deferred income tax liability |  |  | 1,194 |  |
Stockholders’ equity: |  |  |  |  |
Retained earnings |  |  | 97,989 |  |
ASU 2014-09 [Member] | Balances Without Adoption of Revenue Recognition Standard [Member] |  |  |  |  |
Consolidated Statement of Income |  |  |  |  |
Net sales | 26,522 |  |  |  |
Cost of products sold | 19,640 |  |  |  |
Gross profit | 6,882 |  |  |  |
Selling, general and administrative | 4,476 |  |  |  |
Income before provision for income taxes | 2,840 |  |  |  |
Provision for income taxes | 657 |  |  |  |
Net income | 2,183 |  |  |  |
Assets |  |  |  |  |
Trade accounts receivable, net of allowances | 12,018 |  |  |  |
Unbilled revenue | 12,399 |  |  |  |
Inventories | 9,202 |  |  |  |
Prepaid expenses and other current assets | 1,229 |  |  |  |
Other assets | 187 |  |  |  |
Liabilities and stockholders’ equity |  |  |  |  |
Accounts payable | 8,293 |  |  |  |
Accrued compensation | 5,201 |  |  |  |
Accrued expenses and other current liabilities | 3,540 |  |  |  |
Customer deposits | 14,135 |  |  |  |
Deferred income tax liability | 1,639 |  |  |  |
Stockholders’ equity: |  |  |  |  |
Retained earnings | 100,176 |  |  |  |
Accumulated other comprehensive loss | (8,179) |  |  |  |
ASU 2014-09 [Member] | Effect of Change [Member] |  |  |  |  |
Consolidated Statement of Income |  |  |  |  |
Net sales | 3,029 |  |  |  |
Cost of products sold | 2,769 |  |  |  |
Gross profit | 260 |  |  |  |
Selling, general and administrative | 75 |  |  |  |
Income before provision for income taxes | 185 |  |  |  |
Provision for income taxes | 45 |  |  |  |
Net income | 140 |  |  |  |
Assets |  |  |  |  |
Trade accounts receivable, net of allowances | 680 |  | 538 |  |
Unbilled revenue | (555) |  | (1,987) |  |
Inventories | 10,121 |  | 12,985 |  |
Prepaid expenses and other current assets | 113 |  | 118 |  |
Other assets | 34 |  | 69 |  |
Liabilities and stockholders’ equity |  |  |  |  |
Accounts payable | 3 |  | (706) |  |
Accrued compensation | (200) |  | (172) |  |
Accrued expenses and other current liabilities | (71) |  | 484 |  |
Customer deposits | 11,732 |  | 13,372 |  |
Deferred income tax liability | (222) |  | (233) |  |
Stockholders’ equity: |  |  |  |  |
Retained earnings | (749) |  | $ (1,022) |  |
Accumulated other comprehensive loss | $ (100) |  |  |  |

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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68048583&loc=d3e3636-108311 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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