Accounts Receivable (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Accounts Receivable [Abstract]
Accounts receivable-net	$ 29,890,000	$ 30,680,000
Write-offs of accounts receivable	585,000	786,000
Provision for Doubtful Accounts	209,000	124,000
Government segment [Member]
Accounts Receivable [Abstract]
Accounts receivable-net	7,665,000	11,351,000
Government segment [Member] | Billed [Member]
Accounts Receivable [Abstract]
Accounts receivable-net	11,226,000	12,903,000
Government segment [Member] | Advance billings [Member]
Accounts Receivable [Abstract]
Accounts receivable-net	(3,561,000)	(1,552,000)
Hospitality segment [Member]
Accounts Receivable [Abstract]
Accounts receivable-net	22,225,000	19,329,000
Allowances for doubtful accounts	$ 541,000	$ 917,000