6. INTEREST RATE SWAP CONTRACT (Detail) - (Table 2) Gain (Loss) Recognized in Other Comprehensive Income - Derivative Instrument (Cash Flow Hedging [Member], USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Amount of Gain Recognized In OCI on Derivative (Effective Portion)	$ (3,500)	$ (298,000)	$ (45,500)	$ (257,000)
Interest Rate Swap [Member]
Amount of Gain Recognized In OCI on Derivative (Effective Portion)	$ (3,500)	$ (298,000)	$ (45,500)	$ (257,000)