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Acquisitions and Dispositions (Details) (USD $) | 3 Months Ended | 9 Months Ended |  | 0 Months Ended |  |  |  |  |  |  | 0 Months Ended | 1 Months Ended | 0 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Mar. 31, 2013 | Nov. 06, 2013 Amega Scientific | Dec. 31, 2013 Amega Scientific | Dec. 31, 2013 Amega Scientific Minimum | Nov. 06, 2013 Amega Scientific Minimum | Dec. 31, 2013 Amega Scientific Maximum | Nov. 06, 2013 Amega Scientific Maximum | Dec. 31, 2013 Tempsys | Nov. 06, 2013 Tempsys | May 15, 2012 Bios | May 31, 2012 Bios | Jul. 01, 2013 ST Acquisitions
Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Holdback payment period from effective date, less any losses incurred by buyer, payable to seller |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  | 1 year
Earn-out period for determination of contingent consideration |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  | 3 years |
Minimum revenue required in three years subsequent to the acquisition for payment of contingent consideration |  |  |  |  |  | $ 31,625,000 |  |  |  |  |  |  |  | $ 22,127,000 |  |
Potential undiscounted future payments, low end of range |  |  |  |  |  | 0 |  |  |  |  |  |  |  | 0 |  |
Potential undiscounted future payments, high end of range |  |  |  |  |  | 10,000,000 |  |  |  |  |  |  |  | 6,710,000 |  |
Cumulative revenue required in three years subsequent to the acquisition for payment of contingent consideration |  |  |  |  |  |  |  | 31,625,000 | 31,625,000 | 43,500,000 | 43,500,000 |  |  |  |  |
Estimated amount of payment resulting from contingent consideration |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,240,000 |  |
Cash consideration |  |  |  |  |  | 11,268,000 |  |  |  |  |  |  |  | 16,660,000 |  | 1,721,000
Holdback payment liability |  |  |  |  |  | 1,000,000 |  |  |  |  |  |  |  |  |  | 100,000
Contingent consideration liability | 2,676,000 | 2,140,000 | 2,676,000 | 2,140,000 | 2,140,000 | 500,000 | 500,000 |  |  |  |  |  |  | 2,140,000 |  |
Aggregate consideration |  |  |  |  |  | 12,768,000 |  |  |  |  |  |  |  | 18,800,000 |  | 1,821,000
The purchase price was allocated as follows: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  |  |  |  |  |  |  |  |  |  |  |  | 57,000 |  |  |
Accounts receivable, net |  |  |  |  |  | 734,000 |  |  |  |  |  |  | 838,000 | 478,000 |  |
Inventories, net |  |  |  |  |  | 410,000 |  |  |  |  |  |  | 447,000 | 910,000 |  | 230,000
Prepaid expenses and other |  |  |  |  |  | 11,000 |  |  |  |  |  |  | 21,000 |  |  |
Other current assets |  |  |  |  |  |  |  |  |  |  |  |  |  | 28,000 |  |
Property, plant and equipment, net |  |  |  |  |  | 115,000 |  |  |  |  |  |  | 25,000 | 63,000 |  | 7,000
Deferred income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 585,000 |  |  |
Intangibles, net |  |  |  |  |  | 5,838,000 |  |  |  |  |  |  | 6,135,000 | 8,200,000 |  | 1,005,000
Goodwill | 37,929,000 |  | 37,929,000 |  | 23,640,000 | 6,756,000 |  |  |  |  |  |  | 6,954,000 | 9,190,000 |  | 579,000
Accounts payable |  |  |  |  |  |  |  |  |  |  |  |  | (255,000) |  |  |
Accrued salaries and payroll taxes |  |  |  |  |  | (53,000) |  |  |  |  |  |  | (2,134,000) |  |  |
Unearned revenues |  |  |  |  |  | (1,043,000) |  |  |  |  |  |  | (485,000) |  |  |
Other accrued expenses |  |  |  |  |  |  |  |  |  |  |  |  | (135,000) | (69,000) |  |
Deferred income taxes |  |  |  |  |  |  |  |  |  |  |  |  | (2,227,000) |  |  |
Total purchase price allocation |  |  |  |  |  | 12,768,000 |  |  |  |  |  |  | 9,826,000 | 18,800,000 |  | 1,821,000
Amount of one-time bonus accrual for employees' past services |  |  |  |  |  |  |  |  |  |  |  | 2,048,000 |  |  |  |
Amount of one-time disposal of inventories related to an un-marketed product |  |  |  |  |  |  |  |  |  |  |  | 335,000 |  |  |  |
Schedule of pro forma effects of the acquisition on the results of operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | 14,777,000 | 14,074,000 | 43,559,000 | 42,476,000 |  |  |  |  |  |  |  |  |  |  |  |
Net income | $ 2,112,000 | $ 2,116,000 | $ 6,849,000 | $ 6,982,000 |  |  |  |  |  |  |  |  |  |  |  |
Net Income per common share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic (in dollars per share) | $ 0.62 | $ 0.63 | $ 2.01 | $ 2.08 |  |  |  |  |  |  |  |  |  |  |  |
Diluted (in dollars per share) | $ 0.58 | $ 0.60 | $ 1.91 | $ 1.98 |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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- Definition Amount of deferred tax asset attributable to deductible temporary differences and carryforwards that are expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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