(8) Line of Credit	6 Months Ended
Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
(8) Line of Credit	(8) Line of Credit In May 2018, the Company renewed its $1.5 million revolving line of credit line with Santander Bank. The agreement matures at the end of November 2018. The LOC is secured by the accounts receivable and other assets of the Company and has an interest rate of prime plus 100 basis points. Under the terms of the agreement, the Company is required to maintain its operating accounts with Santander Bank. The Company is also subject to certain financial covenants. These include specific earnings levels, a targeted current ratio and a targeted debt to tangible net worth ratio at the end of subsequent quarters. At June 30, 2018, the Company was in compliance with all existing covenants. Also, at June 30, 2018 the Company had $900 thousand of borrowings under this LOC and its borrowing base at the time would have permitted an additional $600 thousand to have been borrowed.

The entire disclosure for significant arrangements with third parties, which includes operating lease arrangements and arrangements in which the entity has agreed to expend funds to procure goods or services, or has agreed to commit resources to supply goods or services, and operating lease arrangements. Descriptions may include identification of the specific goods and services, period of time covered, minimum quantities and amounts, and cancellation rights.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-URI http://asc.fasb.org/topic&trid=2144648

Name:	us-gaap_CommitmentsDisclosureTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration