Note 18 - Subsequent Event	6 Months Ended
Jun. 30, 2019
Subsequent Events [Abstract]
Subsequent Event	(18)Subsequent Event On August 7, 2019, the Company entered into an Agreement and Plan of Merger (“the Merger Agreement”), pursuant to which the Company agreed to be acquired by an affiliate of the global investment firm Permira Funds subject to customary terms and conditions. Under the Merger Agreement, the Company’s stockholders will be entitled to receive $60.00 per share following the closing of the proposed merger. The merger, which is expected to close in the fourth quarter of 2019, is subject to approval by the Company’s stockholders, regulatory approvals and other customary closing conditions.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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